refactor: rewrite Button on the local Primitive utility

Drops the reka-ui Primitive import; behavior and classes are unchanged.

packages/library/src/components/ui/button/Button.vue

@@ -1,14 +1,15 @@
 <script setup lang="ts">
-import type { PrimitiveProps } from 'reka-ui'
 import type { HTMLAttributes } from 'vue'
 import type { ButtonVariants } from '.'
 import { computed } from 'vue'
-import { Primitive } from 'reka-ui'
+import { Primitive } from '@/lib/primitive'
 import { cn } from '@/lib/utils'
 import NychLoadingIcon from '@/components/NychLoadingIcon.vue'
 import { buttonVariants } from '.'
 
-interface Props extends PrimitiveProps {
+interface Props {
+  as?: string
+  asChild?: boolean
   variant?: ButtonVariants['variant']
   size?: ButtonVariants['size']
   class?: HTMLAttributes['class']